As the MSL engineering team continues to study the Sol 200 anomaly, tactical science planning has been cancelled through this weekend. The rover has two computers, and has been running on the A side until yesterday, when commands were sent to boot up the B side. The rover is safe in this configuration, and if necessary we could continue to operate the rover on the B side. But the focus now is on understanding the anomaly and how to recover from it. Of course I'm concerned about this situation, but I've seen JPL spacecraft experts recover from more serious problems, and am therefore confident that they will solve this one as well.